| 1 | #pragma once |
|---|---|
| 2 | |
| 3 | #include <Interpreters/Aliases.h> |
| 4 | |
| 5 | namespace DB |
| 6 | { |
| 7 | |
| 8 | /// It removes Function_if node from AST if condition is constant. |
| 9 | /// TODO: rewrite with InDepthNodeVisitor |
| 10 | class OptimizeIfWithConstantConditionVisitor |
| 11 | { |
| 12 | public: |
| 13 | OptimizeIfWithConstantConditionVisitor(Aliases & aliases_) |
| 14 | : aliases(aliases_) |
| 15 | {} |
| 16 | |
| 17 | void visit(ASTPtr & ast); |
| 18 | |
| 19 | private: |
| 20 | Aliases & aliases; |
| 21 | }; |
| 22 | |
| 23 | } |
| 24 |